Shaving head having interlocking means for the outer shearing member



Jan. 4, 1966 J. L. KLEINMAN 3,223,824

SHAVING HEAD HAVING INTERLOCKING MEANS FOR THE OUTER SHEARING MEMBERFiled Aug. 23, 1963 INV EN TOR.

United States PatentU 3,226,824 SHAVING HEAD HAVING INTERLOCKING MEANSFOR THE OUTER SHEARING MEMBER Jacob L. Kleinman, Hotel Kimberly, 203 W.74th St.,

New York, N.Y. Filed Aug. 23, 1963, Ser. No. 304,088 3 Claims. (Cl.30-4332) This invention relates to the construction of shaving unit forshaving implements in general, and more particularly so to shavingimplements known as electric razors or dry shavers, comprising an outercutter member and a separate carrier each provided with integralslidable interlocking means for becoming automatically interlockeddirectly with each other to hold such outer cutter member secured firmlyin its position upon the carrier.

A primary object of this invention is to provide an assembled shavingunit comprising a carrier and an as sembled shaving unit wherein suchshaving unit is secured to the carrier by integral locking means otherthan screwthreaded elements.

Another important object of this invention is the provision of integralmeans for slidably interlocking automatically the outer cutter memberinto its position directly upon the carrier. p p v i A further importantobject of this invention is the provision of an outer cutter member of ashaving unit provided with resilient means for engagement withinterlocking means of the carrier for being secured firmly into itsposition.

For clarification purposes lowing: i

In the present type of removable shearing sections, wherein theassembled shaving unit is carried by a carrier, the structure is socomplicated that precisional workmanship is required in order to securethe shaving unit to the carrier. The screw-threads for securing theshaving unit to the carrier, or parts of the material, are of such fineor small pitch that even precisional workmanship does not always preventbreakage; this matter, naturally, increased the cost of manufacturingshaving implements, and presents a difficult and vexing problem to thedryshaving implement industry.

Whereas, in accordance with my invention, I produce a shaving unitprovided with integral flange portions adapted to be positioned throughopenings in the carrier for slidably engaging the under-face thereof tobecome interlocked with means of the said carrier, so that by justplacing the unit upon the carrier in a suitable position and moving suchunit into desired direction will interlock the unit automatically withthe carrier without any I wish to point out the foldifliculty or use ofany instrument; this operation is of such a simple nature that it doesnot require precisional workmanship, nor any precisionally builtelements, to accomplish this feature, thereby reducing greatly the costof manufacturing dry-shaving implements.

To illustrate the ordinary commercial utility of my shaving implement indaily life, an implement made in accordance with my invention, ofwhatever style or type it may be made, could be utilized to greatadvantage; the fact that my shaving unit can be so easily secured and/or removed from its carrier, may urge the user to buy such shaving unitand personally secure same to his carrier of his shaving implement;thereby eliminating servicing expense; thus reducing upkeep cost of adry shaver, and eliminating an hindrance to the expansion of thedryshaver industry.

Thus, a shaving implement comprising a carrier and a shaving unit,produced in accordance with my invention, fulfills a long-felt need inthe dry-shaver or electric razor 3,226,824 Patented Jan. 4, 1966industry. My herein invention teaches a new and unique form of structureand solves one of the most vexing problems in the art of makingassembled shaving units for use in connection with dry-shavers. Myherein invention represents a practical and useful structure and can beutilized to great advantage in connection with the manufacturing ofelectrically operated or dry shaving implements.

The objects of my invention are attained by a novel construction whichwill be hereinafter illustrated and described in the drawing inconnection with a specific embodiment of the invention.

In the accompanying drawing in which such specific embodiment of myinvention is illustrated, and described in the annexed specification,wherein the accomplishment of the above and other objects of theinvention will be readily understood on reference to the herein,wherein:

FIG. 1 is a perspective view of the outer cutter member of my shavingunit, showing the floor or under portion thereof being provided with twospaced apart flange sections;

FIG. 2 is a perspective view, partly broken away, showing the flangesections in interlocked position with portions located at the underfaceof the carrier;

FIG. 3 is a perspective view of a portion of my carrier showing theunderface of the carrier provided with means for becoming interlockedwith the flange sections of the outer cutter member of my shaving unit;

FIG. 4 is a fractional cross-sectional view showing the manner in whichthe interlocking means operate during interlocking movement; and

FIG. 5 is a fractional cross-sectional view, similar to that shown inFIG. 4, showing the interlocking means in interlocked position.

I am showing the several figures or views by way of example forillustrative purposes and for a better and clearer understanding of myinvention, and not for limitation purposes.

The size of the parts shown'in the drawings herein, and the spacingtherebetween, being exaggerated for clarification purposes only.

Referring more particularly to the drawing, in which similar referencecharacters identify similar parts in the several views, in the novelstructure of my invention.

Arrow A indicates the outer cutter member of my shaving unit (innercutter member not shown), such outer cutter member having a shear-face band a floor, under face, or lower portion b. The floor portion b isprovided with a resilient or springable flange sections b" each havingan opening 0 and a curved lip-portion 0'. Such flange section b" may beshaped or formed in any suitable style or manner; may be situated in anydesirable location, and may be integral with the outer cutter member,for example, cut-out of the material of the lower floor portion b assuggested at ba, or formed in any other suitable manner, or may beconstructed of other suitable material and secured to the bottom portionb by suitable means; for example, friction fit, welding, rivets or thekind.

The carrier C is provided with openings C and with projecting portionsC. These openings C are of a size permitting the flange sections 12 toenter therein. The front portion or lip O of each of the flange sections12" are of a size smaller than that of their respective rear portions dto facilitate their entrance into the individual openings C of thecarrier or base section C.

To attach my shaving unit to my carrier all one has to do is to placethe outer cutter member (including the inner cutter member) upon thecarrier in a manner having the curved lip-portions O of the flangesections b" positioned within the openings C and engage the outer faceof the carrier C, and then move such outer cutter member longitudinallyinto desired position; during such movement the lip-portion will engagedirectly the projecting portion C and cause the flange section b to rideupon such portion C as shown in FIG. 4 (arrow k); and when the opening 0will reach the projecting portion C it will entrap such portion C andcause the flange section b to snap into position as shown by arrow L(FIG. 5), thus locking the shaving unit in its position directly uponthe carrier C.

The curved portions d and d of the flange section b" will providespring-tension or resiliency for the action of such flange section h"during its movement for being interlocked in its position.

By raising the flange portion b from its interlocked position the outercutter member arrow A may be easily removed from the carrier C.

It is thus clear that I have invented a practical and useful means forsecuring a shaving unit structure upon a carrier in an easy and safemanner.

The above has been shown and explained by way of example and not forlimitation purposes. For example; if desired, the interlocking structuremay be arranged in a different manner, wherein the flange section b maybe provided with a suitable projection for becoming interlocked with anopening, or other suitable means, on the carrier C. Or the flangesections may be differently arranged, or other means may be utilized forslidably locking the shaving unit in its position upon the carrier,particularly so, wherein the user can place his shaving unit upon hiscarrier and in a slidable movement interlock such shaving unit upon itsseat on the said carrier for shaving purposes and be held in a securedmanner thereon.

From the above it is evident that I have invented and perfected ashaving implement structure of a new and unique combination of parts notknown heretofore; a combination of parts performing new and desirablefunctions, a structure which is practical and useful; and although Ihave shown certain preferred forms or illustrations in order to explainand describe the novelty of my invention, yet, by showing suchstructure, I do not, by any means, limit myself to these structures, norto the terms used in describing same, as they are for illustrativepurposes only. Various suggestions and changes of structure to bringabout the functions herein-above referred to may 4 be resorted to, and Idesired it to be understood that I have same in mind when showing anddescribing this invention, and seek protection by Letters Patent. Anda1- though I have mentioned in describing this invention of whatmaterial certain parts may be made, how they may be formed, shaped orstyled, and how they may be assembled, yet I desire it to be understoodthat this structure, or any part thereof, may be made of any suitablematerial, and shaped, formed, styled or arranged in any desirablemanner, and assembled in any convenient way, and that various changesmay be resorted to without departing from the spirit of this invention.

I claim:

1. A shaving unit comprising an outer cutter member provided with meansto support a cooperating movable cutter member, said outer cutter memberhaving a shear face and a base portion, said base portion having flangesections, each of said flange sections having an opening, a carrier forsaid outer cutter member, said carrier having openings and projectingportions extending from said openings, each of said flange sectionspositioned in one of said carrier openings and engaging the outer faceof said carrier, said projecting portions extending in the openings insaid flange sections, thereby interlocking said projecting portions andsections to hold the outer cutter memer in position upon said carrier.

2. In a structure as set forth in claim 1, wherein each of said flangesections having an upraised lip portion for leading the said flangesection into position towards the said outer face of said carrier.

3. In a structure as set forth in claim 1, wherein the said flangesections are each yieldable to a degree facilitating its movementtowards the said interlocking operation.

References Cited by the Examiner UNITED STATES PATENTS 1,828,895 10/1931Hanley 310-47 1,922,824 8/1933 Schick 310-47 2,502,048 3/1950 Kahn310-47 2,562,104 7/1951 Kobler et a1 43.92 2,742,694 4/1956 Stone 3043.52,758,370 8/ 1956 Gray et al. 30-43.92 2,844,869 7/1958 Kahn 30-43922,930,119 3/1960 Kleinman 3043.92 2,959,854 11/1960 Wahl 3043.923,111,754 11/1963 Locke 3041.6

WILLIAM FELDMAN, Primary Examiner.

MYRON C. KRUSE, Examiner.

1. A SHAVING UNIT COMPRISING AN OUTER CUTTER MEMBER PROVIDED WITH MEANSTO SUPORT A COOPERATING MOVABLE CUTTER MEMBER, SAID OUTER MEMBER HAVINGA SHEAR FACE AND A BASE PORTION, SAID BASE PORTION HAVING FLANGESECTIONS, EACH OF SAID FLANGE SECTIONS HAVING AN OPENING, A CARRIER FORSAID OUTER CUTTER MEMBER, SAID CARRIER HAVING OPENINGS AND PROJECTINGPORTIONS EXTENDING FROM SAID OPENINGS, EACH OF SAID FLANGE SECTIONSPOSITIONED IN ONE OF SAID CARRIER OPENINGS AND ENGAGING THE OUTER FACEOF SAID CARRIER, SAID PROJECTING PORTIONS EXTENDING IN THE OPENINGS INSAID FLANGE SECTIONS, THEREBY INTERLOCKING SAID PROJECTING PORTIONS ANDSECTIONS TO HOLD THE OUTER CUTTER MEMBER IN POSITION UPON SAID CARRIER.